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Cyclopentylmagnesium bromide

Also known as: Cyclopentylbromomagnesium, Magnesium, bromocyclopentyl-, Bromcyclopentylmagnesium, Cyclopentyl magnesium bromide, Cyclopentylmagnesium bromide solution

Cyclopentylmagnesium bromide (CAS 33240-34-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H9BrMg and a molecular weight of 173.33400 g/mol. Key properties include a boiling point of 49.2ºC at 760mmHg, a density of 0.996 g/mL at 25 °C and a flash point of -37.8 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
33240-34-5
Jingsj CID
J-22997-0
Molecular Formula
C5H9BrMg
Molecular Weight
173.33400 g/mol
Category
Organohalogen Compounds
Last updated
11/2/2026
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Physicochemical Properties

Boiling Point49.2ºC at 760mmHg
Density0.996 g/mL at 25 °C
Flash Point-37.8 °C
Exact Mass171.97400
LogP2.74380

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Cyclopentylmagnesium bromide?

The CAS number of Cyclopentylmagnesium bromide is 33240-34-5.

What are the molecular formula and molecular weight of Cyclopentylmagnesium bromide?

Cyclopentylmagnesium bromide has molecular formula C5H9BrMg and molecular weight 173.33400 g/mol.

What are the upstream and downstream products of Cyclopentylmagnesium bromide?

For Cyclopentylmagnesium bromide, Upstream Products: Cyclopentyl bromide; Downstream Products: (Bromomethyl)cyclopentane, Cyclopentanecarboxylic acid, 1-cyclopentylethanol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Cyclopentylmagnesium bromide (CAS 33240-34-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22997-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.